Last updated: August 3, 2026
TEF Writing Section B: Vocabulary Upgrades for a C1 Score

TEF Writing Section B: Vocabulary Upgrades for a C1 Score
When examiners grade your TEF Canada Expression Écrite Section B (the argumentative essay), one of the first things they look for is your lexical richness. If you are aiming for a CLB 9 (NCLC 9) or higher, you cannot rely on the basic B1 vocabulary you learned in your beginner classes.
To score a C1, you must demonstrate a mastery of nuanced, precise, and sophisticated French vocabulary.
Here is a guide to upgrading your vocabulary from basic to advanced, specifically tailored for the types of arguments you will make in TEF Section B.
Why "Good" Isn't Good Enough
Imagine you are writing an essay arguing against a new policy that bans remote work. A B1 student writes: (I think this idea is bad because employees are sad.) A C1 student writes: (I maintain that this measure is harmful because it considerably damages employee morale.)